package cn.edu.scau.cmi.ema.controller.rest;

import org.springframework.stereotype.Controller;

import java.util.List;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
import java.io.IOException;

import com.google.gson.Gson;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;


import cn.edu.scau.cmi.ema.domain.base.CmiPagination;
import cn.edu.scau.cmi.ema.service.base.CmiPsonService;
import cn.edu.scau.cmi.ema.controller.base.CmiEmaController;
import cn.edu.scau.cmi.ema.dao.*;
import cn.edu.scau.cmi.ema.domain.*;
import cn.edu.scau.cmi.ema.service.*;

import org.springframework.web.bind.annotation.*;
import javax.servlet.http.HttpServletRequest;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.bind.WebDataBinder;

@Controller("MotiveRestController")
public class MotiveRestController extends CmiEmaController {

	/**
	 * Create a new Motive entity
	 * 
	 */
	@RequestMapping(value = "/newMotive", method = RequestMethod.POST)
	@ResponseBody
	public Object newMotive(@RequestBody Motive motive) {
		motiveService.saveMotive(motive);
		return JSONObject.parse(cmiPsonService.toJsonString(motiveDAO.findMotiveByPrimaryKey(motive.getId()), 2));
	}

	@RequestMapping(value = "/restNewMotive", method = RequestMethod.POST)
	@ResponseBody
	public Object restNewMotive(@RequestBody String motiveJson) {
		Motive motive = new Gson().fromJson(motiveJson, Motive.class);
		appendReferences(motive);
		motiveService.saveMotive(motive);
		return JSONObject.parse(cmiPsonService.toJsonString(motiveDAO.findMotiveByPrimaryKey(motive.getId()), 2));
	}

	@RequestMapping(value = "/saveMotive", method = RequestMethod.PUT)
	@ResponseBody
	public Motive saveMotive(@RequestBody Motive motive) {
		motiveService.saveMotive(motive);
		return motiveDAO.findMotiveByPrimaryKey(motive.getId());
	}

	@RequestMapping(value = "/restSaveMotive", method = RequestMethod.PUT)
	@ResponseBody
	public Object restSaveMotive(@RequestBody String motiveJson) {
		Motive motive = new Gson().fromJson(motiveJson, Motive.class);
		appendReferences(motive);
		CmiPsonService cmiPsonService = new CmiPsonService();
		motiveService.saveMotive(motive);
		return JSONObject.parse(cmiPsonService.toJsonString(motiveDAO.findMotiveByPrimaryKey(motive.getId()), 1));
	}

	@RequestMapping(value = "/restDeleteMotive/{motiveId}", method = RequestMethod.DELETE)
	@ResponseBody
	public void restDeleteMotive(@PathVariable Integer motiveId) {
		Motive motive = motiveDAO.findMotiveByPrimaryKey(motiveId);
		motiveService.deleteMotive(motive);
	}

	@RequestMapping(value = "/restConfirmDeleteMotives")
	@ResponseBody
	public Object restConfirmDeleteMotives(@RequestBody Set<Integer> deleteMotivesIds) {
		Set<Motive> deleteMotives = motiveDAO.findMotivesByIds(deleteMotivesIds);
		Set<Motive> referencedMotives = motiveService.loadReferenceMotives(deleteMotives);
		deleteMotives.removeAll(referencedMotives);
		JSONObject jsonObject = new JSONObject();
		jsonObject.put("referencedEntitys", referencedMotives);
		jsonObject.put("deleteEntitys", deleteMotives);
		return JSONObject.parse(jsonObject.toJSONString());
	}

	@RequestMapping("/restDeleteMotives")
	@ResponseBody
	public Object restDeleteMotives(@RequestBody Set<Motive> deleteMotives) {
		Iterator<Motive> iterator = deleteMotives.iterator();
		while (iterator.hasNext()) {
			Motive currentMotive = iterator.next();
			motiveService.deleteMotive(currentMotive);
		}
		JSONObject jsonObject = new JSONObject();
		jsonObject.put("url", "listMotives");
		return JSONObject.parse(jsonObject.toJSONString());
	}
	// loadself

	@RequestMapping(value = "/restLoadMotive/{motiveId}", method = RequestMethod.POST)
	@ResponseBody
	public Object restLoadMotive(@PathVariable Integer motiveId, @RequestBody CmiPagination cmiPagination) {
		CmiPsonService cmiPsonService = new CmiPsonService();
		return JSONObject.parse(cmiPsonService.toPsonString(motiveDAO.findMotiveByPrimaryKey(motiveId), 2, cmiPagination));
	}
	// loadReferenceds
	// TODO loadReferencedsPson，这个方法有一些问题，待修复

	@RequestMapping(value = "/restLoadMotiveEvents/{motiveId}/events/{relatedeventId}", method = RequestMethod.POST)
	@ResponseBody
	public Object restLoadMotiveEvents(@PathVariable Integer motiveId, @PathVariable Integer relatedeventId,
			@RequestBody CmiPagination cmiPagination) {
		Event event = eventDAO.findEventByPrimaryKey(relatedeventId, -1, -1);
		CmiPsonService cmiPsonService = new CmiPsonService();
		return JSONObject.parse(cmiPsonService.toPsonString(event, 2, cmiPagination));
	}

	public void appendReferences(Motive motive) {

		// 引用表是纯联系表的情况
		Set<Event> eventsForMotive = new HashSet<>();
		for (Event eventForMotive : motive.getEventsForMotive()) {
			eventsForMotive.add(eventService.findEventByPrimaryKey(eventForMotive.getId()));
		}
		motive.setEventsForMotive(eventsForMotive);
	}

	@RequestMapping(value = "/restGetMotiveEvents/{motiveId}/events", method = RequestMethod.POST)
	@ResponseBody
	public Object restGetMotiveEvents(@PathVariable Integer motiveId, @RequestBody CmiPagination cmiPagination) {
		CmiPsonService cmiPsonService = new CmiPsonService();
		return JSONObject.parse(cmiPsonService.toPsonString(motiveDAO.findMotiveByPrimaryKey(motiveId).getEventsForMotive(),
				2, cmiPagination));
	}

	@RequestMapping(value = "/restListMotives", method = RequestMethod.GET)
	@ResponseBody
	public Object restListMotives() {
		return JSONObject.parse(cmiPsonService.toJsonString(motiveService.loadMotives(), 2));
	}

	@RequestMapping(value = "/restListMotivesPost", method = RequestMethod.POST)
	@ResponseBody
	public Object restListMotivesPost(@RequestBody CmiPagination cmiPagination) {

		CmiPsonService cmiPsonService = new CmiPsonService();
		cmiPagination = motivePaginationService.updateAppPagination(cmiPagination);
		int startResult = (cmiPagination.getCurrentPagination() - 1) * cmiPagination.getPaginationSize();

		Set<Motive> motives = motiveDAO.findAllMotives(startResult, cmiPagination.getPaginationSize());
		String motiveString = cmiPsonService.toPsonString(motives, 2, cmiPagination);

		return JSONObject.parse(motiveString);
	}

	@RequestMapping("/motiveSelectBox")
	@ResponseBody
	public JSONObject motiveSelectBox(@RequestParam(required = false) String searchTable,
			@RequestParam(required = false) Set<Integer> searchValue, // 杨宏宇2019-9-10：searchValue是在selectpage.js的616行定义，如果要修改searchValue的名称，1.可以修改在selectpage.js修改；2.可以
																		// @RequestParam(value="searchValue", required =
																		// false) Set<Integer> someName
			@RequestParam(required = false, defaultValue = "10") int paginationSize,
			@RequestParam(required = false, defaultValue = "1") int pageNumber,
			@RequestParam(value = "qWord[]", required = false) String queryword,
			@RequestParam(required = false) String selectItem) throws IOException {
		Set entitySet = null;
		Integer count = 0;

		// 初始化原始值

		if (searchValue != null) {
			switch (searchTable) {
			// 外键

			// 被引用键

			case "Event":
				entitySet = eventService.loadEventsByIdSet(searchValue);
				break;
			}
			// 没有测试，深度需要多少？？？
			String jsonData = cmiPsonService.toJsonString(entitySet, 1);
			JSONArray jsonArray = new JSONArray();
			jsonArray = (JSONArray) JSON.parse((String) jsonData);

			JSONObject jsonObject = new JSONObject();
			jsonObject.put("list", jsonArray);
			jsonObject.put("totalRow", entitySet.size());
			return jsonObject;
		}

		// 不根据关键字进行搜索
		if (queryword == null || queryword.trim() == "") {
			switch (selectItem) {
			// 外键

			// 被引用键

			case "Event":
				entitySet = eventDAO.findAllEvents((pageNumber - 1) * paginationSize, paginationSize);
				count = eventService.countEvents();
				break;
			}
		} else {
			switch (selectItem) {
			// 外键

			// 被引用键

			case "Event":
				entitySet = eventDAO.findEventByNameContaining(queryword, (pageNumber - 1) * paginationSize,
						paginationSize);
				count = eventService.countEventsByName(queryword);
				break;
			}
		}
		/**
		 * 将Json数据转换成jsonArray形式，需要通过pson方式进行转换，然后再转换成JsonArray。因为存在懒加载
		 * 没有直接使用CmiPsonService中的fromJson方法是因为，fromJson方法会将int类型的直接转换成double类型的数据，这个问题还没有解决
		 */
		// 没有测试，深度需要多少？？？
		String jsonData = cmiPsonService.toJsonString(entitySet, 1);
		JSONArray jsonArray = new JSONArray();
		jsonArray = (JSONArray) JSON.parse((String) jsonData);

		JSONObject jsonObject = new JSONObject();
		jsonObject.put("list", jsonArray);
		jsonObject.put("paginationSize", paginationSize);
		jsonObject.put("pageNumber", pageNumber);
		jsonObject.put("totalRow", count);
		jsonObject.put("totalPaginations",
				count % paginationSize == 0 ? count / paginationSize : count / paginationSize + 1);
		return jsonObject;
	}
}
